命令模式

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CommandSchema
{
class Program
{
static void Main(string[] args)
{
Barbecue boy=new Barbecue();

Command bakeMuttonCommand=new BakeMuttonCommand(boy);
Command bakeChickenWingCommand=new BakeChickenWingCommand(boy);

Waiter gril=new Waiter();
gril.SetOrder(bakeMuttonCommand);
gril.SetOrder(bakeChickenWingCommand);

gril.Notify();
Console.ReadLine();
}
}
/// <summary>
/// 烤羊肉串的人
/// </summary>
class Barbecue
{
public void BakeMutton()
{
Console.WriteLine("开始烤羊肉串");
}
public void BakeChickenWing()
{
Console.WriteLine("开始烤鸡翅膀");
}
}
/// <summary>
/// 抽象命令
/// </summary>
abstract class Command
{
protected Barbecue receiver;

protected Command(Barbecue receiver)
{
this.receiver = receiver;
}

abstract public void ExecuteCommand();
}

class BakeMuttonCommand:Command
{
public BakeMuttonCommand(Barbecue receiver) : base(receiver)
{
}

public override void ExecuteCommand()
{
receiver.BakeMutton();
}
}

class BakeChickenWingCommand:Command
{
public BakeChickenWingCommand(Barbecue receiver) : base(receiver)
{
}

public override void ExecuteCommand()
{
receiver.BakeChickenWing();
}
}
/// <summary>
/// invoker
/// </summary>
class Waiter
{
private IList<Command> orders=new List<Command>();

public void SetOrder(Command command)
{
orders.Add(command);
Console.WriteLine("增加订单：" + command + " 时间：" + DateTime.Now);
}

public void CancelOrder(Command command)
{
orders.Remove(command);
Console.WriteLine("取消订单：" + command + " 时间：" + DateTime.Now);
}

public void Notify()
{
foreach (Command command in orders)
{
command.ExecuteCommand();
}
}
}
}